One last question... I am concerned that I accidentally got the 220V version. Is there a way to verify which version I have without opening the box? I'd rather avoid the restocking fee.

Hi

Somehow I feel like I've answered this before....

There is nothing on the outside of the box (other than a sticker) to tell you which version you have. No sticker = you gotta open up the packaging. If you are refering to opening up the case of the unit to check the pc board - no you don't have to tear into the case. The markings on the transformer can be read through the vents.

I think I may have made an error. I recently bought one of these things - the CH54 model - off eBay, for $10.30 plus about $5 shipping. I was all proud of myself for getting it so cheap, but, after reviewing this thread, I re-read the posting on eBay and saw that the relays were only rated for 5A. Uh oh. If I wired this thing up to a keezer, I might burn the house down, yes? Do I need to go back to the drawing board and buy a different model? If so, it's a pity; I think the one I got displays in Fahrenheit, which I would have appreciated.

I don't even have the chest freezer yet, so I'm not in a hurry (well, I am, but I'm trying to be patient)... I hope to split an extension cord and mount the unit to the keezer collar, so I can see the display from the front of the keezer. I've seen pics on this board where people have done that, but I haven't seen anybody's in-depth build on how they mounted/ran wires. I did try searching... If someone has detailed such a build, I'd very much appreciate a link. Thanks in advance!

FWIW, the model I got will only control heating OR cooling at any given time. That's fine for me, since I'm in Houston and don't need to heat anything beer-related.